Tin Diselenide
High-purity Tin Diselenide (SnSe2, CAS 20770-09-6), 99.99–99.999%, supplied wholesale by Zyntex. Layered n-type semiconductor for 2D materials research, photodetectors, thermoelectrics and battery studies. CoA and SDS.
Description
Tin Diselenide Product Overview
Tin diselenide (SnSe2) is a dark grey to black crystalline material with a hexagonal, CdI2-type layered structure. It also melts at about 650–675°C, and its band gap of roughly 1–2 eV depends on the number of layers. It is earth-abundant and contains no rare elements.
In addition, researchers exfoliate SnSe2 into few-layer flakes for field-effect transistors, photodetectors and other 2D devices. Similarly, it is under study for thermoelectrics, battery anodes and phase-change memory. It also differs from Tin selenide (SnSe), a separate compound with tin in the +2 state that is famous for thermoelectric performance.
Furthermore, high purity of 99.99–99.999% matters for reproducible electronic properties. Related layered materials in our range also include Molybdenum Disulfide and Bismuth selenide.
Key Applications of Tin Diselenide
Typical uses include, for example:
🔬 2D Materials
Layered crystal for exfoliation studies.
📸 Photodetectors
Semiconductor for optoelectronic devices.
🔥 Thermoelectrics
Material for thermoelectric research.
🔋 Battery Research
Anode material studies.
Tin Diselenide Technical Specifications
| Parameter | Standard Value |
|---|---|
| Product Name | Tin Diselenide |
| CAS Number | 20770-09-6 |
| Molecular Formula / Weight | SnSe2 / 276.63 g/mol |
| Assay / Metal Purity | Min 99.99% to 99.999% |
| Crystal Structure | Hexagonal, CdI2-type layered phase |
| Appearance | Dark gray to black crystalline powder / flakes |
| Documents | CoA as well as SDS with every lot |
⚠️ Safety & Handling: Toxic if swallowed or inhaled and may cause damage to organs through prolonged exposure; very toxic to aquatic life. Contact with acids may release toxic hydrogen selenide. Avoid dust formation, work in a fume hood, and also wear gloves, eye protection and respiratory protection. Store in tightly closed containers in a dry place. Always consult the Safety Data Sheet (SDS), because it contains the full classification and handling instructions.
Frequently Asked Questions
What is the difference between tin diselenide and tin selenide?
Tin diselenide (SnSe2) contains tin in the +4 state and is n-type, whereas tin selenide (SnSe) contains tin in the +2 state and is known for thermoelectrics.
Which forms do you supply?
Powder and flakes are standard, while bulk crystals are available on request.
How can I get a price and documents?
Prices depend on quantity, packaging and destination, so please contact us with your required volume. We then send a quotation together with the CoA and SDS.
